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CVE-2010-3015

Published: 20 August 2010

Integer overflow in the ext4_ext_get_blocks function in fs/ext4/extents.c in the Linux kernel before 2.6.34 allows local users to cause a denial of service (BUG and system crash) via a write operation on the last block of a large file, followed by a sync operation.

From the Ubuntu Security Team

Toshiyuki Okajima discovered that ext4 did not correctly check certain parameters. A local attacker could exploit this to crash the system or overwrite the last block of large files.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy
Released (2.6.24-28.80)
jaunty
Released (2.6.28-19.66)
karmic
Released (2.6.31-22.67)
lucid
Released (2.6.32-25.43)
maverick Not vulnerable

upstream Needs triage

Patches:
hardy: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/hardy/linux/0001-ext4-consolidate-in_range-definitions.txt
jaunty: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/jaunty/linux/0001-ext4-consolidate-in_range-definitions.txt
karmic: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/karmic/linux/0001-ext4-consolidate-in_range-definitions.txt
lucid: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/lucid/linux/0001-ext4-consolidate-in_range-definitions.txt
linux-ec2
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-307.21)
lucid
Released (2.6.32-309.18)
maverick Ignored
(end of life)
upstream Needs triage

linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-112.30)
lucid
Released (2.6.31-608.22)
maverick Does not exist

upstream Needs triage

linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid
Released (2.6.35-25.44~lucid1)
maverick Does not exist

upstream Needs triage

linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper Not vulnerable

hardy Does not exist

jaunty Does not exist

karmic Does not exist

lucid Does not exist

maverick Does not exist

upstream Needs triage